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Dalmatian Toadflax

Dalmatian toadflax (Linaria dalmatica)
Dalmatian toadflax (Linaria dalmatica) Photo: Utah State University

These yellow flowers may look like they belong in an Easter bouquet, but don’t just pick these—rip them totally out of the ground. These Dalmatian toadflax flowers are native to parts of Europe and West Asia and were introduced to the U.S. sometime in the late 1800s or early 1900s, according to the USDA. They’ve spread throughout states out West.

Like many other invasive plants, these blooms can outgrow native species and compete for soil moisture. They especially impact rangelands and pastures that could be used for grazing, according to the Washington State Noxious Weed Board Control. These plants need to have their roots destroyed to be defeated. If pulling methods aren’t available, they should be sprayed with herbicides, according to a USDA guide.